CN108301769B - A kind of RW type horizontal well construction method and its drilling tool used - Google Patents
A kind of RW type horizontal well construction method and its drilling tool used Download PDFInfo
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- CN108301769B CN108301769B CN201810050314.0A CN201810050314A CN108301769B CN 108301769 B CN108301769 B CN 108301769B CN 201810050314 A CN201810050314 A CN 201810050314A CN 108301769 B CN108301769 B CN 108301769B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
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- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
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- Geochemistry & Mineralogy (AREA)
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Abstract
The invention discloses a kind of RW type horizontal well construction method and its drilling tools used.Its key points of the technical solution are that drilling tool includes drill bit and more piece hollow drill pipe, drill bit and hollow drill pipe are attached using connection component, and drill bit is connect by drilling process connection component with hollow drill pipe, when hollow drill pipe is extracted, both connection component allows disengaging.Construction procedure are as follows: use drilling machine horizontal drilling, drilling rod is the hollow drill pipe of more piece splicing, and drill bit is to be detachably connected with drilling rod；In drilling process or after drilling to completion, filter pipe is inserted into hollow drill pipe from aperture；Hollow drill pipe is transferred to, hollow drill pipe and drill bit are detached from, and drill bit and filter pipe stay in the borehole.This method operating procedure is simple, operating environment is good.It can be improved the construction efficiency of horizontal well using the drilling tool.
Description
Technical field
The present invention relates to the construction of horizontal well, in particular to a kind of RW type horizontal well construction method and its drilling tool used.
Background technique
It constructs without casing drilling and currently, the horizontal well construction method of underground water precipitation is generally divided into casing drilling
Construction.It is horizontal drill (spiral anchor rod drilling machine) horizontal drilling pore-forming-extraction drill bit and drilling rod-insertion without casing work progress
The gap of filter pipe and hole wall at filter pipe-closed orifices.The technique can all have different degrees of collapse substantially after pulling out drill bit
Hole phenomenon, when collapse hole is serious, filter pipe can not be inserted into, and need redrilling.
Be mainly used in the relatively difficult stratum of pore-forming with casing drilling, process flow is: drilling process middle sleeve with
Drill bit together in access aperture-pore-forming after extract drill bit-and be inserted into filter pipe-in casing and then extract casing-closed orifices again
Locate the gap of filter pipe and hole wall.
Currently, the drilling machine that the method with casing drilling uses has waterpower double-walled clean-out machine, there are also waterpower direct circulation sets
Pipe drilling machine.These drill machine with casing are all needs in the construction process for slurry plasma discharge, so construction site is more muddy, operating environment
Difference；It also needs to extract casing after pore-forming intubation, increases working procedure, duration and artificial, and when casing is transferred to also needs to use
The special-purpose machineries such as hoist engine.If it is considering that casing is placed on the inside does not pull out, construction cost will be greatly increased.
While the drilling machine method of waterpower direct circulation is horizontal drill rotation and hydraulic jacking drilling rod, cooperate high pressure water drill
Into high pressure water directes reach drill bit by hollow drill pipe and sprays stratum, and landwaste is discharged from the gap of drilling rod and casing and hole wall.It is drilled into and sets
After counting depth, filter pipe is injected from hollow drill pipe, extracts drilling rod, filter pipe is stayed in the borehole, casing is finally transferred to.The work
Skill other the disadvantage is that: soil erosion is more, commonly reaches 2 times of theoretical amount；If hydraulic pressure and drilling speed control are bad in construction,
It will cause local cavity.
Double-walled clean-out machine is using two-wall hollow drilling rod, and two-wall hollow drilling rod has two passes, is double respectively
The cavity passage and drilling rod central passage that wall is formed, the loop direction of flushing liquor are opposite with direct circulation drilling method.It is high when drilling
It presses water to reach bottom hole from the double-walled channel of drilling rod, is crushed with drill bit after the landwaste to get off mixes and becomes slurry liquid；Slurry liquid is from double
The discharge of wall drilling rod central passage.The technique other the disadvantage is that: drilling rod is heavy, to observe drilling machine operating load state at any time, return
Turn pressure, feed pressure and return water feature (including contained landwaste type, content, water, flow velocity etc.), judges hole inside information in time
Condition takes measures to prevent clogging at any time.
To sum up, that there are construction efficiency is low, operating environment is poor and construction cost is higher for existing level well construction method
Problem.
Summary of the invention
The object of the present invention is to provide a kind of RW type horizontal well construction method, this method operating procedure is simple, operating environment
It is good.
The object of the present invention is to provide a kind of drilling tools that RW type horizontal well construction method uses, and can be improved using the drilling tool
The construction efficiency of horizontal well.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of RW type horizontal well construction method, including following construction procedure:
Step a, with drilling machine horizontal drilling, drilling rod is the hollow drill pipe of more piece splicing, and drill bit and hollow drill pipe are detachable
Connection；
Step b, after drilling to completion, filter pipe is inserted into hollow drill pipe from aperture；
Step c, hollow drill pipe is transferred to, hollow drill pipe and drill bit are detached from, and drill bit and filter pipe stay in the borehole.
By using above-mentioned technical proposal, the step of casing follow-up is transferred to the later period, the speed of application of horizontal well are eliminated
Fastly, shorten the duration, save labour；It is not needed when drilling for slurry plasma discharge, construction site is clean, environmentally friendly；Reduce special jewel
The configuration of machine and Hydraulic Circulation saves the investment of hoist engine and manpower when extracting casing, to substantially reduce construction cost.
Preferably, in step b, after drilling to completion, filter pipe is inserted into hollow drill pipe from aperture, is changed
Are as follows: in drilling process, with the connecting of hollow drill pipe, filter pipe is inserted into synchronization into hollow drill pipe.
By using above-mentioned technical proposal, due to filter pipe as hollow drill pipe is synchronized to be sent in drilling, reduce brill
The step of filter pipe is inserted separately into after hole, further improves working efficiency.
Preferably, this method is applied to the horizontal well construction of layer of sand, powder soil horizon, viscous soil horizon or mud.
By using above-mentioned technical proposal, in the stratum, spiral dirll is easier to carry out the soil body squeezed, forms hole,
Speed of application is faster.
A kind of drilling tool that RW type horizontal well construction method uses, including drill bit and more piece hollow drill pipe, more piece hollow drill pipe
It is detachably connected between each other；Drill bit includes the drill body and interconnecting piece being fixedly connected with each other；Drill bit and hollow drill pipe are using connection
Component is attached, and in drilling process, hollow drill pipe is connect by connection component with drill bit, when drilling rod is transferred to, during connection component makes
Empty drilling rod is separated with drill bit.
By using above-mentioned technical proposal, in drilling process, hollow drill pipe drives drill bit creep into squeezed, and drilling stops
When, filter pipe is by the way that in hollow drill pipe insertion drilling, then drill bit is separated with hollow drill pipe, is extracted drilling rod, is completed horizontal well
Construction, so that construction procedure is simply, rapidly and efficiently.
Preferably, connection component includes the phase being arranged on several protrusive boards and hollow drill pipe of the interconnecting piece of drill bit
Matched card slot；The protrusive board is arranged radially along drill bit, and card slot is set on the tube wall of the junction of hollow drill pipe and drill bit,
The card slot can block protrusive board.
By using above-mentioned technical proposal, when drilling, card slot blocks protrusive board, bores drill bit under the drive of hollow drill pipe
When into, dead man, card slot and protrusive board are detached to realize the disengaging of hollow drill pipe and drill bit.
Preferably, the interconnecting piece of drill bit further includes intubation, and in the intubation insertion hollow drill pipe, the protrusive board is affixed
In the outer surface of intubation.
By using above-mentioned technical proposal, so that drill bit is more firm in drilling process, the accuracy of drilling is improved.
Preferably, drill body is concrete structure.
By using above-mentioned technical proposal, drill bit cost decline, so that entire construction technology.
Preferably, the diameter of drill bit is greater than the outer diameter of hollow drill pipe.
By using above-mentioned technical proposal, reduce contact of the hollow drill pipe with borehole wall, saves drilling force when drilling, and
And facilitate the extraction of drilling rod.
Preferably, the outer surface of drill body is provided with spiral ridge.
By using above-mentioned technical proposal, the rate of penetration of drill bit is accelerated, it is more preferable to the squeezed effect of the soil body.
In conclusion the invention has the following advantages:
1, the construction method of the horizontal well compared with prior art, eliminates the step of casing follow-up is transferred to the later period, horizontal
The speed of application of well is fast, shortens the duration, saves labour；
2, due to not needed when drilling for slurry plasma discharge, construction site is clean, environmentally friendly；
3, the configuration for reducing special drilling machine and Hydraulic Circulation equipment saves the throwing of hoist engine and manpower when extracting casing
Enter, to substantially reduce construction cost；
4, using concrete bit, it further reduced construction cost.
Detailed description of the invention
Fig. 1 is the overall structure diagram of drilling tool；
Fig. 2 is drill bit and hollow drill pipe junction structural schematic diagram；
Fig. 3 is drill bit and hollow drill pipe connection schematic diagram before creeping into；
Fig. 4 is that first segment hollow drill pipe pierces rear continued access hollow drill pipe operation schematic diagram；
Fig. 5 is the operation schematic diagram of insertion filter pipe after drilling to completion；
Fig. 6 is to extract hollow drill pipe operation schematic diagram；
Fig. 7 is filter pipe insertion hollow drill pipe schematic diagram before creeping into embodiment two；
Fig. 8 is filter pipe continued access operation schematic diagram synchronous with hollow drill pipe in embodiment two.
In figure, 1, drill bit；2, drill body；21, spiral ridge；3, interconnecting piece；31, it is intubated；4, hollow drill pipe；41, prevent
Turn trough；5, connection component；51, protrusive board；52, card slot；6, filter pipe.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.The wherein identical appended drawing reference of identical components
It indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "upper", "lower", " bottom surface " and
" top surface " refers to that the direction in attached drawing, word "inner" and "outside" are referred respectively to towards or away from geometric center of specific component
Direction.
Embodiment one:
As shown in Figure 1, a kind of drilling tool that RW type horizontal well construction method uses, including drill bit 1 and more piece hollow drill pipe 4,
More piece hollow drill pipe 4 is detachably connected between each other, and drill bit 1 is attached with hollow drill pipe 4 using connection component 5.
Hollow drill pipe 4 can be mono- section of 1.5m~2.5m, can be threaded connection between two hollow drill pipes 4.In every
The outer surface of one end of empty drilling rod 4 is provided with symmetrically arranged anti-rotation groove 41, in use, blocking anti-rotation groove with tools such as spanners
41, to facilitate the threaded connection of two hollow drill pipes 4.
As shown in Fig. 2, drill bit 1 includes the drill body 2 and interconnecting piece 3 being fixedly connected with each other, drill body 2 can be concrete
Structure, preferably, using high-strength concrete, such as can be the concrete marked as C50~C150.The interconnecting piece 3 of drill bit 1 is also
Including intubation 31, intubation 31 can be the steel pipe being embedded in drill body 2, and the outer diameter for being intubated 31 is less than the interior of hollow drill pipe 4
Diameter, intubation 31 are inserted into hollow drill pipe 4.
Drill bit 1 is attached with hollow drill pipe 4 using connection component 5, and connection component 5 includes the connection that drill bit 1 is arranged in
The card slot 52 to match on several protrusive boards 51 and hollow drill pipe 4 in portion 3.Protrusive board 51 is fixed in the outer surface of intubation 31, convex
Plate 51 is arranged radially along drill bit 1, can be four.Card slot 52 is set to the tube wall of the connecting pin of hollow drill pipe 4 and drill bit 1
On, the card slot 52 can block protrusive board 51.
In drilling process, hollow drill pipe 4 is connect by connection component 5 with drill bit 1, and drilling rod applies pressure, card slot 52 to drill bit 1
It is mutually twisted with protrusive board 51, hollow drill pipe 4 is made to drive 1 rotary drilling of drill bit.When drilling rod is transferred to, card slot 52 on drilling rod is from brill
Protrusive board 51 on first 1 skids off, and separates hollow drill pipe 4 with drill bit 1.
As shown in Fig. 2, drill bit 1 is crept into for convenience, the outer surface of drill body 2 is provided with spiral ridge 21, makes to bore
First 1 forms arachnoid.Further, the contact between drilling rod and borehole wall in order to prevent, preferably to carry out dead man behaviour
Make, the diameter of drill bit 1 is set greater than to the outer diameter of drilling rod.
A kind of RW type horizontal well construction method, two English alphabets of RW are English screw screw respectively in party's legitimate name
In r, the w in well well represents the drilling construction that horizontal well is carried out with screwed drill bit 1.Construction procedure is as follows:
Step a, on wall, surveying and locating goes out the punch position of horizontal well, and marks；
Step b, with drilling machine on wall horizontal drilling；
As shown in figure 3, the card slot 52 of hollow drill pipe 4 and the protrusive board 51 of drill bit 1 are clamped, and by the section hollow drill pipe 4
It is mounted on drilling machine；Drilling machine can be jumbolter, adjusts drilling machine position and angle according to ready-made label, makes 1 face of drill bit
Bore position；As shown in figure 4, starting the horizontal drilling on wall, drill bit 1 squeezes out a hole using squeezed principle on wall
(i.e. no boring mud is appeared)；When in first hollow drill pipe 4 substantially drilling wall, stops drilling, increase a hollow drill pipe 4
It is threadedly coupled with former hollow drill pipe 4；Continue to creep into, continued access hollow drill pipe 4 is recycled, until being drilled into design hole depth.
Step c, as shown in figure 5, after drilling to projected depth, filter pipe 6 is inserted into hollow drill pipe 4.
Step d, as shown in fig. 6, transfering to drilling rod outward with drilling machine, the card slot 52 on hollow drill pipe 4 and the protrusive board on drill bit 1
51 are detached from, and drill bit 1 and filter pipe 6 stay in the borehole, and hollow drill pipe 4 is extracted.
Step e, follow-up work is carried out, including being blocked to the filter pipe 6 at aperture and the gap between borehole wall,
And the horizontal well is accessed into the pipe network that draws water, carry out dewatering operation.
Due to the horizontal well construction method compared with prior art, eliminate casing follow-up and the later period transfer to the step of, water
The speed of application of horizontal well is fast, shortens the duration, saves labour；Moreover, because not needed when drilling for slurry plasma discharge, construction site
Completely, environmentally friendly；In addition, reducing the configuration of special drilling machine and Hydraulic Circulation equipment, hoist engine and people when extracting casing are saved
The investment of power, to substantially reduce construction cost.The horizontal well construction method be suitable for layer of sand, powder soil horizon, viscous soil horizon or
The construction of the squeezed horizontal well of the suitable drill bit 1 such as mud.
Embodiment two:
The difference is that, in step b and step c, filter pipe 6 is unified after drilling to projected depth with embodiment one
It is inserted into hollow drill pipe 4, replacement are as follows: synchronous that filter is inserted into hollow drill pipe 4 with the connecting of hollow drill pipe 4 in drilling process
Water pipe 6.As shown in fig. 7, the card slot 52 of hollow drill pipe 4 and the protrusive board 51 of drill bit 1 are clamped, first segment filter pipe 6 is inserted into
In hollow drill pipe 4, and the section hollow drill pipe 4 is mounted on drilling machine；Start the horizontal drilling on wall；As shown in figure 8, when the
When in a piece hollow drill pipe 4 drilling wall substantially, stops drilling, new section filter pipe 6 is connected with the filter pipe 6 in hole, together
When newly increase a hollow drill pipe 4 and be threadedly coupled with former hollow drill pipe 4；Continue to creep into；With the intensification of drilling, continued access filter pipe
6 and hollow drill pipe 4, until being drilled into design hole depth.
It due to filter pipe 6 as hollow drill pipe 4 is synchronized continued access, is sent in drilling, is individually inserted after reducing drilling
The step of entering filter pipe 6, further improves working efficiency.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (7)
1. a kind of RW type horizontal well construction method is applied to underground water precipitation, it is characterised in that: including following construction procedure:
Step a, with drilling machine horizontal drilling, drilling rod is the hollow drill pipe (4) of more piece splicing, and drill bit (1) and hollow drill pipe (4) are can
Dismantling connection；Drill bit (1) is arachnoid, has a diameter larger than the outer diameter of hollow drill pipe (4)；Drill bit (1) includes concrete structure
Drill body (2)；When drilling, drill bit (1) squeezes out a hole using squeezed principle on wall, goes out in the process without boring mud
Hole；
Step b, after drilling to completion, filter pipe (6) are inserted into hollow drill pipe (4) from aperture；
Step c, hollow drill pipe (4) are transferred to, hollow drill pipe (4) and drill bit (1) are detached from, and drill bit (1) and filter pipe (6) stay in drilling
In.
2. a kind of RW type horizontal well construction method according to claim 1, it is characterised in that: in step b, it is deep to be drilled into design
After degree, filter pipe (6) are inserted into hollow drill pipe (4) from aperture, are changed to: in drilling process, with connecing for hollow drill pipe (4)
It is continuous, it is synchronous to be inserted into filter pipe (6) into hollow drill pipe (4).
3. a kind of RW type horizontal well construction method according to claim 1 or 2, it is characterised in that: this method is applied to sand
Layer, powder soil horizon, viscous soil horizon or mud horizontal well construction.
4. a kind of drilling tool that RW type horizontal well construction method uses, it is characterised in that: including drill bit (1) and more piece hollow drill pipe
(4), drill bit (1) is arachnoid, has a diameter larger than the outer diameter of hollow drill pipe (4)；More piece hollow drill pipe (4) is detachable between each other
Connection, drill bit (1) includes the drill body (2) of the interconnecting piece (3) and concrete structure that are fixedly connected with each other；Drill bit (1) and hollow brill
Bar (4) is attached using connection component (5), and in drilling process, connection component (5) connects hollow drill pipe (4) and drill bit (1)
It connects；Drill bit (1) squeezes out a hole using squeezed principle on wall, appears in the process without boring mud；In filter pipe (6) insertion
In empty drilling rod (4)；When drilling rod is transferred to, connection component (5) separates hollow drill pipe (4) with drill bit (1), drill bit (1) and filter pipe
(6) it stays in the borehole.
5. a kind of drilling tool that RW type horizontal well construction method uses according to claim 4, it is characterised in that: connection component
It (5) include the card slot to match being arranged on several protrusive boards (51) and hollow drill pipe (4) of the interconnecting piece (3) of drill bit (1)
(52)；The protrusive board (51) is arranged radially along drill bit (1), and card slot (52) is set to the junction of hollow drill pipe (4) Yu drill bit (1)
Tube wall on, the card slot (52) can block protrusive board (51).
6. a kind of drilling tool that RW type horizontal well construction method uses according to claim 5, it is characterised in that: drill bit (1)
Interconnecting piece (3) further include intubation (31), the intubation (31) insertion hollow drill pipe (4) is interior, and the protrusive board (51) is fixed in slotting
Manage the outer surface of (31).
7. a kind of drilling tool that RW type horizontal well construction method uses, feature according to claim 4~6 any one exist
In: the outer surface of drill body (2) is provided with spiral ridge (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810050314.0A CN108301769B (en) | 2018-01-18 | 2018-01-18 | A kind of RW type horizontal well construction method and its drilling tool used |
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|---|---|---|---|
| CN201810050314.0A CN108301769B (en) | 2018-01-18 | 2018-01-18 | A kind of RW type horizontal well construction method and its drilling tool used |
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| CN108301769A CN108301769A (en) | 2018-07-20 |
| CN108301769B true CN108301769B (en) | 2019-08-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110552630A (en) * | 2019-10-15 | 2019-12-10 | 山东源运通矿山装备科技有限公司 | Electric coal drill rod |
| CN116448624B (en) * | 2023-06-16 | 2023-09-29 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Soil stratum pollutant monitoring system and method |
| CN117127913B (en) * | 2023-10-25 | 2023-12-29 | 江苏省交通工程集团有限公司 | Horizontal drilling device for ground construction and application method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1011992B (en) * | 1988-07-26 | 1991-03-13 | 合肥工业大学 | Radiation well series-bead cave well method |
| CN2777173Y (en) * | 2005-03-09 | 2006-05-03 | 管恩太 | Rock powder dredging device for borehole |
| CN101251018B (en) * | 2008-04-14 | 2010-04-21 | 中铁隧道集团有限公司 | Subsection retrusive slip-casting method for porthole slurry-stop mixed double-pipe |
| CN102926770B (en) * | 2012-11-08 | 2015-01-07 | 中国神华能源股份有限公司 | Underground draining and grouting process in thin bedrock and thick loose sand layer rich water areas |
| CN102937001B (en) * | 2012-11-23 | 2016-05-11 | 中国水利水电科学研究院 | Sand-pebble layer radial well drilling technology |
| CN204282383U (en) * | 2014-11-29 | 2015-04-22 | 中铁十九局集团有限公司 | Stream moulds the advanced vacuum-dewatering device of shape silt particle country rock |
| CN106639876B (en) * | 2016-12-07 | 2018-11-06 | 中国地质大学（北京） | Radiating aperture guide digging equipment and technique |
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